CN112480489A - Oil-resistant sealing ring rubber material and preparation method thereof - Google Patents
Oil-resistant sealing ring rubber material and preparation method thereof Download PDFInfo
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- CN112480489A CN112480489A CN202011389198.9A CN202011389198A CN112480489A CN 112480489 A CN112480489 A CN 112480489A CN 202011389198 A CN202011389198 A CN 202011389198A CN 112480489 A CN112480489 A CN 112480489A
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 105
- 239000005060 rubber Substances 0.000 title claims abstract description 105
- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000007789 sealing Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 230000003712 anti-aging effect Effects 0.000 claims abstract description 67
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 67
- 239000006229 carbon black Substances 0.000 claims abstract description 60
- 239000002994 raw material Substances 0.000 claims abstract description 59
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 45
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 45
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 36
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 34
- 235000021355 Stearic acid Nutrition 0.000 claims abstract description 34
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims abstract description 34
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000008117 stearic acid Substances 0.000 claims abstract description 34
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 32
- 229920001194 natural rubber Polymers 0.000 claims abstract description 32
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 29
- 239000003292 glue Substances 0.000 claims abstract description 29
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 claims abstract description 20
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000011593 sulfur Substances 0.000 claims abstract description 19
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 19
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011787 zinc oxide Substances 0.000 claims abstract description 18
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 17
- 239000002270 dispersing agent Substances 0.000 claims abstract description 17
- 235000019808 microcrystalline wax Nutrition 0.000 claims abstract description 17
- 239000004200 microcrystalline wax Substances 0.000 claims abstract description 17
- 239000011297 pine tar Substances 0.000 claims abstract description 17
- 229940068124 pine tar Drugs 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000004014 plasticizer Substances 0.000 claims abstract description 9
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical group CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 12
- MQIUGAXCHLFZKX-UHFFFAOYSA-N Di-n-octyl phthalate Natural products CCCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC MQIUGAXCHLFZKX-UHFFFAOYSA-N 0.000 claims description 9
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 claims description 9
- ZZMVLMVFYMGSMY-UHFFFAOYSA-N 4-n-(4-methylpentan-2-yl)-1-n-phenylbenzene-1,4-diamine Chemical compound C1=CC(NC(C)CC(C)C)=CC=C1NC1=CC=CC=C1 ZZMVLMVFYMGSMY-UHFFFAOYSA-N 0.000 claims description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920003051 synthetic elastomer Polymers 0.000 description 4
- 239000005061 synthetic rubber Substances 0.000 description 4
- 238000004073 vulcanization Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000209504 Poaceae Species 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010092 rubber production Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an oil-resistant sealing ring rubber material which comprises the following raw materials in parts by weight: 50-70 parts of natural rubber, 70-90 parts of rubber seeds, 0.5-2.5 parts of sulfur, 1.2-4.2 parts of accelerator, 2-5 parts of zinc oxide, 1-3 parts of stearic acid, 10-30 parts of plasticizer, 20-40 parts of universal carbon black, 2-6 parts of anti-aging agent, 1-3 parts of microcrystalline wax and 0.5-3.5 parts of dispersant; wherein the glue seeds comprise the following raw materials in parts by weight: 60-90 parts of nitrile rubber, 10-40 parts of butadiene rubber, 3-8 parts of pine tar, 8-15 parts of tackifying resin, 1-3 parts of stearic acid, 15-35 parts of universal carbon black and 3-8 parts of defoaming agent; the accelerators include accelerator DM, accelerator CZ, accelerator TMTD, and accelerator DTDM. The rubber material has the advantages of good sealing property, high strength, excellent oil resistance and long service life, and can meet the requirement of long-term use. In addition, the invention also provides a preparation method of the oil-resistant sealing ring rubber material.
Description
Technical Field
The invention relates to the technical field of rubber, in particular to an oil-resistant sealing ring rubber material and a preparation method thereof.
Background
The rubber industry is one of the important basic industries of national economy, not only provides daily and medical light industrial rubber products which are indispensable to daily life for people, but also provides various rubber production equipment or rubber parts for heavy industries such as mining, traffic, building, machinery, electronics and emerging industries.
The rubber is elastic, insulating, waterproof and air-proof material prepared by extracting latex of plants such as rubber trees, rubber grasses and the like and processing the latex. It is a highly elastic polymer compound. It is divided into two types of natural rubber and synthetic rubber. The natural rubber is prepared by extracting colloid from plants such as rubber tree and rubber grass and processing; synthetic rubbers are obtained by polymerization of various monomers. The synthetic rubber is not as comprehensive as natural rubber in performance, but has the advantages of high elasticity, insulativity, air tightness, oil resistance, high temperature resistance, low temperature resistance and the like. In the prior art, the traditional synthetic rubber and products thereof are easy to age under the action of multiple factors in the using process, so that the performance is reduced, and even the use is influenced.
For example, when the existing sealing ring is used for sealing an oil pipeline, the oil resistance is poor, and in the long-term use process, the phenomena of leakage of oil or oily wastewater and the like can occur due to performance aging, so that public safety is damaged.
Therefore, how to provide an oil-resistant seal ring rubber material with good sealing performance, long service life and excellent oil resistance and aging resistance becomes a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides an oil-resistant sealing ring rubber material which has the advantages of good sealing property, high strength, excellent oil resistance and long service life and can meet the requirement of long-term use. In addition, the invention also provides a preparation method of the oil-resistant sealing ring rubber material, and the method also has the technical effects, is simple in process and is suitable for industrial production.
The invention discloses an oil-resistant sealing ring rubber material which is characterized by comprising the following raw materials in parts by weight: 50-70 parts of natural rubber, 70-90 parts of rubber seeds, 0.5-2.5 parts of sulfur, 1.2-4.2 parts of accelerator, 2-5 parts of zinc oxide, 1-3 parts of stearic acid, 10-30 parts of plasticizer, 20-40 parts of universal carbon black, 2-6 parts of anti-aging agent, 1-3 parts of microcrystalline wax and 0.5-3.5 parts of dispersant; wherein the glue seeds comprise the following raw materials in parts by weight: 10-30 parts of nitrile rubber, 10-30 parts of butadiene rubber, 3-8 parts of pine tar, 8-15 parts of tackifying resin, 1-3 parts of stearic acid, 15-35 parts of universal carbon black and 3-8 parts of defoaming agent; the accelerators include accelerator DM, accelerator CZ, accelerator TMTD, and accelerator DTDM.
The zinc oxide can play a role in heat transfer in the preparation process, and the temperature rise time in the preparation process is shortened. Meanwhile, the addition of the metal oxide can also improve the indexes of the rubber material, such as heat resistance, wear resistance, tensile strength and the like.
Preferably, the feed comprises the following raw materials in parts by weight: 55-65 parts of natural rubber, 75-85 parts of rubber seeds, 1-2 parts of sulfur, 2.2-4.2 parts of accelerator, 3-5 parts of zinc oxide, 1.5-2.5 parts of stearic acid, 15-25 parts of plasticizer, 25-35 parts of universal carbon black, 5-6 parts of anti-aging agent, 1.5-2.5 parts of microcrystalline wax and 2.5-3.5 parts of dispersant; wherein the glue seeds comprise the following raw materials in parts by weight: 15-25 parts of nitrile rubber, 15-25 parts of butadiene rubber, 4-6 parts of pine tar, 10-13 parts of tackifying resin, 1-2 parts of stearic acid, 20-30 parts of universal carbon black and 4-6 parts of defoaming agent.
Preferably, the feed comprises the following raw materials in parts by weight: 60 parts of natural rubber, 80 parts of rubber seeds, 1.5 parts of sulfur, 3.2 parts of accelerator, 4 parts of zinc oxide, 2 parts of stearic acid, 20 parts of plasticizer, 30 parts of universal carbon black, 6 parts of anti-aging agent, 2 parts of microcrystalline wax and 3 parts of dispersant; wherein the glue seeds comprise the following raw materials in parts by weight: 20 parts of nitrile rubber, 20 parts of butadiene rubber, 5 parts of pine tar, 12 parts of tackifying resin, 1 part of stearic acid, 25 parts of universal carbon black and 5 parts of defoaming agent.
Preferably, the weight portion ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is (1-1.3): (1-1.2): (0.1-0.3): (1-1.1).
Preferably, the weight part ratio of the promoter DM, the promoter CZ, the promoter TMTD and the promoter DTDM is 1:1:0.2: 1.
Preferably, the antioxidant comprises antioxidant RD and antioxidant 4020.
The aging resistance and the heat resistance of the rubber material can be effectively improved under the combined action of the antioxidant RD and the antioxidant 4020.
Preferably, in the antioxidant, the weight part ratio of the antioxidant RD to the antioxidant 4020 is 1:1.
Preferably, the plasticizer is dibutyl phthalate, and/or dioctyl phthalate.
In addition, the invention also provides a preparation method of the oil-resistant sealing ring rubber material, which is characterized by comprising the following steps of:
preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds;
after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
The invention has the beneficial effects that:
1. according to the oil-resistant sealing ring rubber material provided by the invention, the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM are used in a matched manner, so that the reaction between rubber and sulfur can be greatly accelerated, the vulcanization speed is increased, the vulcanization temperature is reduced, the vulcanization time is shortened, the sulfur consumption is reduced, the physical and mechanical properties of the rubber are improved, and the tensile strength, the stretching strength, the wear resistance, the hardness and the like of the rubber are improved; meanwhile, the aging resistance of the rubber material can be effectively improved, and the service life of the rubber material is prolonged.
2. The oil-resistant sealing ring rubber material provided by the invention has lower hardness of 50 Shore hardness, can deform to perfectly fit with the inner wall of an oil pipeline, and meets the sealing requirement of the oil pipeline.
3. The oil-resistant sealing ring rubber material provided by the invention has the advantages of high strength, good sealing property and excellent oil resistance, and can effectively prevent oil or oily wastewater from leaking and ensure the use safety.
4. The preparation method provided by the invention comprises the steps of mixing the universal carbon black with the butadiene rubber, increasing the hardness of the butadiene rubber by utilizing the universal carbon black, improving the processing performance of the butadiene rubber, and mixing the butadiene rubber with other raw materials, so that various performance indexes of the rubber material can be effectively improved.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 50 parts of natural rubber, 70 parts of rubber seeds, 0.5 part of sulfur, 1.2 parts of accelerator, 2 parts of zinc oxide, 1 part of stearic acid, 10 parts of dibutyl phthalate, 20 parts of universal carbon black, 2 parts of anti-aging agent, 1 part of microcrystalline wax and 0.5 part of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 10 parts of nitrile-butadiene rubber, 10 parts of butadiene rubber, 3 parts of pine tar, 8 parts of tackifying resin, 1 part of stearic acid, 15 parts of universal carbon black and 3 parts of defoaming agent;
accelerators include accelerator DM, accelerator CZ, accelerator TMTD, and accelerator DTDM.
Specifically, the weight part ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1.3:1:0.1: 1.1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1: 2.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 2
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 70 parts of natural rubber, 90 parts of rubber seeds, 2.5 parts of sulfur, 4.2 parts of accelerator, 5 parts of zinc oxide, 3 parts of stearic acid, 30 parts of dioctyl phthalate, 40 parts of universal carbon black, 6 parts of anti-aging agent, 3 parts of microcrystalline wax and 3.5 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 30 parts of nitrile rubber, 30 parts of butadiene rubber, 8 parts of pine tar, 15 parts of tackifying resin, 3 parts of stearic acid, 35 parts of universal carbon black and 8 parts of defoaming agent;
accelerators include accelerator DM, accelerator CZ, accelerator TMTD, and accelerator DTDM.
Specifically, the weight part ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1:1.2:0.3: 1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 2:1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 3
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 55 parts of natural rubber, 75 parts of rubber seeds, 1 part of sulfur, 2.2 parts of an accelerator, 3 parts of zinc oxide, 1.5 parts of stearic acid, 15 parts of dibutyl phthalate and dioctyl phthalate, 25 parts of universal carbon black, 5 parts of an anti-aging agent, 1.5 parts of microcrystalline wax and 2.5 parts of a dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 15 parts of nitrile-butadiene rubber, 15 parts of butadiene rubber, 4 parts of pine tar, 10 parts of tackifying resin, 1 part of stearic acid, 20 parts of universal carbon black and 4 parts of defoaming agent.
Specifically, the weight portion ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1.3:1.2:0.2: 1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, and the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1: 1.2.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 4
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 65 parts of natural rubber, 85 parts of rubber seeds, 2 parts of sulfur, 4.2 parts of accelerator, 5 parts of zinc oxide, 2.5 parts of stearic acid, 25 parts of dibutyl phthalate and dioctyl phthalate, 35 parts of universal carbon black, 6 parts of anti-aging agent, 2.5 parts of microcrystalline wax and 3.5 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 25 parts of nitrile rubber, 25 parts of butadiene rubber, 6 parts of pine tar, 13 parts of tackifying resin, 2 parts of stearic acid, 30 parts of universal carbon black and 6 parts of defoaming agent.
Specifically, the weight portion ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1.2:1.1:0.2: 1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, and the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1.1: 1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 5
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 60 parts of natural rubber, 80 parts of rubber seeds, 1.5 parts of sulfur, 3.2 parts of accelerator, 4 parts of zinc oxide, 2 parts of stearic acid, 20 parts of dibutyl phthalate, 30 parts of universal carbon black, 6 parts of anti-aging agent, 2 parts of microcrystalline wax and 3 parts of dispersant; wherein the glue seeds comprise the following raw materials in parts by weight: 20 parts of nitrile rubber, 20 parts of butadiene rubber, 5 parts of pine tar, 12 parts of tackifying resin, 1 part of stearic acid, 25 parts of universal carbon black and 5 parts of defoaming agent.
Specifically, the weight part ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1:1:0.2: 1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1:1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 6
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 62 parts of natural rubber, 78 parts of rubber seeds, 1.6 parts of sulfur, 3.4 parts of accelerator, 3.5 parts of zinc oxide, 2.2 parts of stearic acid, 23 parts of dioctyl phthalate, 28 parts of universal carbon black, 5.6 parts of anti-aging agent, 2.1 parts of microcrystalline wax and 3.4 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 22 parts of nitrile-butadiene rubber, 19 parts of butadiene rubber, 4.8 parts of pine tar, 13 parts of tackifying resin, 1.3 parts of stearic acid, 26 parts of universal carbon black and 4.8 parts of defoaming agent.
Specifically, the weight part ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1:1.1:0.2: 1.1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1:1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 7
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 59 parts of natural rubber, 80 parts of rubber seeds, 1.8 parts of sulfur, 3.2 parts of accelerator, 4.3 parts of zinc oxide, 2 parts of stearic acid, 22 parts of dibutyl phthalate and dioctyl phthalate, 33 parts of universal carbon black, 6.2 parts of anti-aging agent, 2 parts of microcrystalline wax and 3 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 20 parts of nitrile rubber, 20 parts of butadiene rubber, 4.5 parts of pine tar, 15 parts of tackifying resin, 1.1 parts of stearic acid, 26 parts of universal carbon black and 5 parts of defoaming agent.
Specifically, the weight part ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1:1.1:0.2: 1.1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1:1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 8
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 63 parts of natural rubber, 78 parts of rubber seeds, 1.5 parts of sulfur, 3.3 parts of accelerator, 3.5 parts of zinc oxide, 1.8 parts of stearic acid, 20 parts of dioctyl phthalate, 33 parts of universal carbon black, 5.7 parts of anti-aging agent, 2 parts of microcrystalline wax and 2.8 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 19 parts of nitrile rubber, 21 parts of butadiene rubber, 5.3 parts of pine tar, 11 parts of tackifying resin, 0.8 part of stearic acid, 27 parts of universal carbon black and 4.5 parts of defoaming agent.
Specifically, the weight portion ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1.2:1.1:0.3: 1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, and the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1: 1.2.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 9
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 60 parts of natural rubber, 80 parts of rubber seeds, 1.6 parts of sulfur, 3.5 parts of accelerator, 3.8 parts of zinc oxide, 1.9 parts of stearic acid, 24 parts of dibutyl phthalate and dioctyl phthalate, 28 parts of universal carbon black, 7 parts of anti-aging agent, 1.6 parts of microcrystalline wax and 3.4 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 22 parts of nitrile-butadiene rubber, 18 parts of butadiene rubber, 5 parts of pine tar, 12 parts of tackifying resin, 1 part of stearic acid, 25 parts of universal carbon black and 5 parts of defoaming agent.
Specifically, the weight part ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1:1.1:0.2: 1.1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1:1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
Example 10
An oil-resistant sealing ring rubber material comprises the following raw materials in parts by weight: 58 parts of natural rubber, 82 parts of rubber seeds, 1.7 parts of sulfur, 2.8 parts of accelerator, 3.6 parts of zinc oxide, 1.8 parts of stearic acid, 22 parts of dibutyl phthalate, 35 parts of universal carbon black, 6 parts of anti-aging agent, 2 parts of microcrystalline wax and 3 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 15 parts of nitrile-butadiene rubber, 25 parts of butadiene rubber, 5 parts of pine tar, 11 parts of tackifying resin, 1 part of stearic acid, 28 parts of universal carbon black and 5 parts of defoaming agent.
Specifically, the weight portion ratio of the accelerator DM, the accelerator CZ, the accelerator TMTD and the accelerator DTDM is 1.2:1.2:0.3: 1.1.
The anti-aging agent comprises an anti-aging agent RD and an anti-aging agent 4020, wherein the weight part ratio of the anti-aging agent RD to the anti-aging agent 4020 is 1:1.
The preparation method specifically comprises the following steps: preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds; after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
According to relevant countries and industry standards, the oil-resistant sealing ring rubber materials obtained in the examples 1 to 10 are tested, and the specific results are shown in the following table:
TABLE 1 Performance index for examples 1-10
As can be seen from Table 1, the oil-resistant sealing ring rubber material provided by the invention has the advantages of excellent indexes, excellent performance and the like, the tensile strength and the elongation at break of the oil-resistant sealing ring rubber material are far higher than national and industrial standards, and the compression permanent deformation of the oil-resistant sealing ring rubber material under the conditions of high temperature and normal temperature is far lower than national and industrial standards.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. The oil-resistant sealing ring rubber material is characterized by comprising the following raw materials in parts by weight: 50-70 parts of natural rubber, 70-90 parts of rubber seeds, 0.5-2.5 parts of sulfur, 1.2-4.2 parts of accelerator, 2-5 parts of zinc oxide, 1-3 parts of stearic acid, 10-30 parts of plasticizer, 20-40 parts of universal carbon black, 2-6 parts of anti-aging agent, 1-3 parts of microcrystalline wax and 0.5-3.5 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 60-90 parts of nitrile rubber, 10-30 parts of butadiene rubber, 3-8 parts of pine tar, 8-15 parts of tackifying resin, 1-3 parts of stearic acid, 15-35 parts of universal carbon black and 3-8 parts of defoaming agent;
the accelerators include accelerator DM, accelerator CZ, accelerator TMTD, and accelerator DTDM.
2. The oil-resistant seal ring rubber material as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 55-65 parts of natural rubber, 75-85 parts of rubber seeds, 1-2 parts of sulfur, 2.2-4.2 parts of accelerator, 3-5 parts of zinc oxide, 1.5-2.5 parts of stearic acid, 15-25 parts of plasticizer, 25-35 parts of universal carbon black, 5-6 parts of anti-aging agent, 1.5-2.5 parts of microcrystalline wax and 2.5-3.5 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 15-25 parts of nitrile rubber, 15-25 parts of butadiene rubber, 4-6 parts of pine tar, 10-13 parts of tackifying resin, 1-2 parts of stearic acid, 20-30 parts of universal carbon black and 4-6 parts of defoaming agent.
3. The oil-resistant seal ring rubber material as claimed in claim 2, characterized by comprising the following raw materials in parts by weight: 60 parts of natural rubber, 80 parts of rubber seeds, 1.5 parts of sulfur, 3.2 parts of accelerator, 4 parts of zinc oxide, 2 parts of stearic acid, 20 parts of plasticizer, 30 parts of universal carbon black, 6 parts of anti-aging agent, 2 parts of microcrystalline wax and 3 parts of dispersant;
wherein the glue seeds comprise the following raw materials in parts by weight: 20 parts of nitrile rubber, 20 parts of butadiene rubber, 5 parts of pine tar, 12 parts of tackifying resin, 1 part of stearic acid, 25 parts of universal carbon black and 5 parts of defoaming agent.
4. The oil-resistant seal ring rubber material according to any one of claims 1 to 3, wherein, among the accelerators,
the weight portion ratio of the accelerant DM, the accelerant CZ, the accelerant TMTD and the accelerant DTDM is (1-1.3): (1-1.2): (0.1-0.3): 1-1.1).
5. The oil-resistant seal ring rubber material according to claim 4, wherein, among the accelerators,
the weight portion ratio of the accelerator DM to the accelerator CZ to the accelerator TMTD to the accelerator DTDM is 1:1:0.2: 1.
6. The oil-resistant seal ring rubber material as claimed in any one of claims 1 to 3, wherein the antioxidant comprises antioxidant RD and antioxidant 4020.
7. The oil-resistant seal ring rubber material as claimed in claim 6, wherein the weight part ratio of the antioxidant RD to the antioxidant 4020 in the antioxidant is 1:1.
8. The oil-resistant seal ring rubber material according to claim 1, wherein the plasticizer is dibutyl phthalate and/or dioctyl phthalate.
9. The preparation method of the oil-resistant seal ring rubber material according to any one of claims 1 to 8, characterized by comprising the following steps:
preparing a glue seed: firstly mixing the cis-butadiene rubber and the general carbon black, then mixing the mixture of the general carbon black and the cis-butadiene rubber and the nitrile-butadiene rubber, and finally adding the rest raw materials in the rubber seeds;
after the rubber seeds are prepared, the rubber seeds are mixed with the natural rubber, and then other raw materials are added and mixed uniformly.
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